. >> what kind of technology do they have that -- that could help them with this? i mean, when you talk to any investigator, any district attorney, they talk about the effect of television programs where the technology is so much more sophisticated than in real life but what about things like facial recognition? >> well, i think that's key. agencies like immigration and customs enforcement and customs and border protection are huge in a case like this because they might be able to tell you about something, if there was reason for some person to be a foreign visitor or foreign traveler, but facial recognition software, you know, when it's in certain places, airports or some place, can be upheld, but you don't know how somebody might have come or could be a local person so it's only limited. the more value is the digital age. if that praf is photograph is pn everybody's iphone, on the national media and everybody starts calling in. everybody starts calling in. i think it's my uncle freddy. i think it's joe down the street, and you'll get a lot of false positives. tha